102 lines
4.3 KiB
C#
102 lines
4.3 KiB
C#
//
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// GoogleHelpers.cs
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//
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// Author:
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// Paul Schneider <paul@pschneider.fr>
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//
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// Copyright (c) 2015 GNU GPL
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//
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU Lesser General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU Lesser General Public License for more details.
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//
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// You should have received a copy of the GNU Lesser General Public License
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// along with this program. If not, see <http://www.gnu.org/licenses/>.
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using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.Net.Http;
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using System.Net.Http.Headers;
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using System.Threading.Tasks;
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using Microsoft.AspNet.Identity;
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using Newtonsoft.Json.Linq;
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using Yavsc.Models;
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using Yavsc.Models.Auth;
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using Yavsc.Models.Google.Messaging;
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using Yavsc.Models.Messaging;
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namespace Yavsc.Helpers
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{
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/// <summary>
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/// Google helpers.
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/// </summary>
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public static class GoogleHelpers
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{
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/// <summary>
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/// Notifies the event.
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/// </summary>
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/// <returns>The event.</returns>
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/// <param name="evpub">Evpub.</param>
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public static async Task<MessageWithPayloadResponse> NotifyEvent
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(this HttpClient channel, GoogleAuthSettings googleSettings, CircleEvent evpub) {
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// ASSERT ModelState.IsValid implies evpub.Circles != null
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//send a MessageWithPayload<YaEvent> to circle members
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// receive MessageWithPayloadResponse
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// "https://gcm-http.googleapis.com/gcm/send"
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var regids = new List<string> ();
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foreach (var c in evpub.Circles)
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foreach (var u in c.Members) {
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regids.AddRange (u.Member.Devices.Select(d=>d.RegistrationId));
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}
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if (regids.Count>0) return null;
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var request = new HttpRequestMessage(HttpMethod.Get, Constants.GCMNotificationUrl);
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request.Headers.Authorization = new AuthenticationHeaderValue("Key", googleSettings.ApiKey);
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var msg = new MessageWithPayload<YaEvent> () {
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notification = new Notification() { title = evpub.Title, body = evpub.Description, icon = "event" },
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data = evpub , registration_ids = regids.ToArray() };
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var response = await channel.SendAsync(request);
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var payload = JObject.Parse(await response.Content.ReadAsStringAsync());
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return payload.Value<MessageWithPayloadResponse>();
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}
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public static async Task<MessageWithPayloadResponse> NotifyEvent<Event>
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(this HttpClient channel, GoogleAuthSettings googleSettings, IEnumerable<string> regids, Event ev)
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where Event : YaEvent
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{
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if (regids == null)
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throw new NotImplementedException ("Notify & No GCM reg ids");
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var request = new HttpRequestMessage(HttpMethod.Get, Constants.GCMNotificationUrl);
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request.Headers.Authorization = new AuthenticationHeaderValue("Key", googleSettings.ApiKey);
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var msg = new MessageWithPayload<Event> () {
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notification = new Notification() { title = ev.Title,
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body = ev.Description + ev.Comment==null?
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"":"("+ev.Comment+")", icon = "icon" },
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data = ev, registration_ids = regids.ToArray() };
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var response = await channel.SendAsync(request);
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var payload = JObject.Parse(await response.Content.ReadAsStringAsync());
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return payload.Value<MessageWithPayloadResponse>();
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}
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public static async Task<UserCredential> GetCredentialForGoogleApiAsync(this UserManager<ApplicationUser> userManager, ApplicationDbContext context, string uid)
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{
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var user = await userManager.FindByIdAsync(uid);
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var googleId = context.UserLogins.FirstOrDefault(
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x => x.UserId == uid
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).ProviderKey;
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if (string.IsNullOrEmpty(googleId))
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throw new InvalidOperationException("No Google login");
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var token = await context.GetTokensAsync(googleId);
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return new UserCredential(uid, token);
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}
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}
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}
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